Air Hammer Duty Heavy Duty Shank Shape Hex Stroke Length 3 in Air Inlet Size 3/8 in NPT Female Kit Contents (1) Bare Tool Blows per Minute 1 725 bpm Shank Size 0.58 in Air Inlet Gender Female Air Inlet Type NPT Air Inlet Connection Size 3/8 in Compatible Collar Shape Oval Retainer Type Lock-Spring Power Source Air Powered Air Consumption 29 cfm Air Pressure 90 psi Min Hose Size 1/2 in Material Application Concrete